if (document.images)
    {
      preload_image1 = new Image(150,26);
      preload_image1.src="images/btn_despre_mine_over.jpg";
      preload_image2 = new Image(140,26);
      preload_image2.src="images/btn_portofoliu_over.jpg";
      preload_image3 = new Image(146,26);
      preload_image3.src="images/btn_galerie_foto_over.jpg";
      preload_image4 = new Image(116,26);
      preload_image4.src="images/btn_servicii_over.jpg";
      preload_image5 = new Image(104,26);
      preload_image5.src="images/btn_contact_over.jpg";
    }